1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mel-nik [20]
3 years ago
13

Please help me with question 5

Mathematics
1 answer:
Fantom [35]3 years ago
7 0
Use the left and right triangles. (the two smaller ones -- ACD and BCD)
By similar triangles ACD is similar to BCD
on the left AD/CD is one ratio
On the right CD/DB is the other. These two ratios are equal because they are corresponding parts.

AD / CD = CD / DB
AD = 3
DB = 12
CD = ??
Substitute.
3/CD = CD/12 Cross multiply
36 = CD^2
sqrt(36) = sqrt(CD^2)
CD = 6 <<<<==== Answer.
A <<<<====Answer.
 
You might be interested in
fill in the empty spaces ANSWERS 1 21 -7 7 6 24 -1 .5 2.4(5h+10)-3=27 12h+__-3=27 12h+__=27 12h=__ h=__
dalvyx [7]

Answer:

h = 1/2

Step-by-step explanation:

Step 1: Write equation

2.4(5h + 10) - 3 = 27

Step 2: Distribute

12h + 24 - 3 = 27

Step 3: Combine like terms

12h + 21 = 27

Step 4: Subtract 21 on both sides

12h = 6

Step 5: Divide both sides by 12

h = 6/12

Step 6: Simplify

h = 1/2

4 0
3 years ago
Whats 2.13×0.197 as a decimal
Tcecarenko [31]

Answer:

It's 0.41961.

8 0
3 years ago
Read 2 more answers
1. Lisa walked 48 blocks in 3 hours <br> _________blocks per hour
scoray [572]
To solve this, we divide 48 by 3.
48÷3=16
16 blocks per hour.
7 0
3 years ago
Read 2 more answers
HELP ME PLEASE............................................................
mestny [16]

Answer:

2√6

Step-by-step explanation:

find the hypotenuse of the triangle thats 3 and 7

pythagorean

3 squared + 7 squared

16 + 49 = 57

√57 is the hypotenuse

√57 is also the base of the triangle that has side thats 9

pythagorean theorem

x squared + √57 squared = 9 squared

x^2 + 57 = 81

x^2 = 81 - 57

x^2 = 24

x = √24

x = √4 * √6

x = 2√6

7 0
2 years ago
9×7= Use. the disistributive property to find each product.<br><br>​
ANEK [815]

Answer:

63

Step-by-step explanation:

first yoy need to put the biggest number on the top then multiply each number

6 0
3 years ago
Other questions:
  • Jason's bank account balance was $300. He paid 1/4 of his bills. Now, his account balance is -$50. Which equation can be used to
    6·1 answer
  • Pls explain your answer
    14·1 answer
  • Answer this behind me
    10·1 answer
  • 3) 4 pounds of meat cost $18. How much will 10 pounds of the same meat cost?​
    14·2 answers
  • moinca spent 4/7 hours listening beethtoven and brahms. she spent 2/5 hours listening to beethtoven. how many hours were spent l
    9·1 answer
  • What is the quotient of 1060 ÷ 48
    10·2 answers
  • The probability of choosing a green marble from a bag is 3/5.
    15·1 answer
  • Can I get some help plz thank u sm
    14·1 answer
  • Solve for the distance between the points (25, -41) and (31, -32).
    5·1 answer
  • Help. me math 20 points​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!